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A44C17/04—Setting gems in jewellery; Setting-tools
FR404164D1909-06-181909-06-18Moyen nouveau pour réaliser l'assemblage souple des apprets, estampés, métal et pierreries employés en bijouterie
ExpiredFR404164A
(fr)
Perfectionnements apportés au traitement du sable noir aurifère, des mattes concentrées et autres matières métallifères analogues pour en recouvrer le contenu en métal
Perfectionnements apportés dans l'établissement des montres pouvant se loger, par exemple, dans le chaton des bagues et produits nouveaux en résultant